This aluminium rear lower suspension arm is an aftermarket component intended for TAMIYA DT-03 chassis applications and is supplied under part number DT3056. The arm provides a metal replacement maintaining OEM mounting geometry while offering lower compliance at rear suspension attachment points to support consistent alignment under dynamic loads.
Designed for direct-fit installation where DT-03 mounting points are retained, the part requires alignment verification with hub carriers and existing pivot pins during assembly. Maintain original spacers where applicable and tighten fasteners to the chassis hardware specifications. The stiffer aluminium mount reduces flex compared to standard plastic arms, aiding setup reproducibility and tuning precision.
Recommended maintenance includes routine inspection of screw threads and mating surfaces, cleaning bearing faces before reassembly, and using thread-lock on steel fasteners as needed. Verify pivot freedom and absence of binding after initial runs to confirm correct installation.
Aimed at hobbyists seeking a durable metal upgrade, this rear lower arm preserves DT-03 geometry while delivering a firmer mounting platform for setup and tuning work.